Xinje XC Series User Manual page 53

decrease according to the direction status. If the count direction is OFF, do increment count with
the input's rising edge; if the count direction is ON, do decrement count with the input's rising
edge;
3 AB Phase Mode
Under this mode, the HSC value increase or decrease according to the two difference signal
(A phase or B phase). According to the times number, we have also one-time frequency mode
and four-time frequency mode. The default mode is four-time frequency mode.
One-time Frequency Mode
5 Input Specifications and Wiring Methods